this is actually a nice feature to have one day
In my case with the pancake coil part this could enable me to make a gap-line across the coil so that i could short out coil windings to tinker with the inductance, this would introduce other side effects but i can see practical use for this.
On the SVG / XML side of things how is the soldermask layer named? something like soldermaks0 and soldermask1? for bottom and top? I have not come across these names yet so for all i know they don’t even exist.